NOW Tri-3D Omega
Brand: NOW · Form: SOFTGEL CAPSULE [E0161]
Our assessment
The evidence shows that NOW Tri-3D Omega provides a meaningful combination of three forms of vitamin D plus omega-3s. Our assessment: The calcium in this product supports bone mineralization and neuromuscular relaxation [NIH ODS]. However, the data on calcium also requires caution. Some research suggests that high calcium intakes might increase the risk of heart disease and prostate cancer [NIH ODS].
How it works
Think of calcium as a structural builder for your skeleton. It supports bone density and mineral deposition, while also helping your muscles relax and your nerves signal properly [NIH ODS]. The omega-3s in the formula work alongside calcium to support overall health, though specific interaction data for the combined formula is not available.
Safety profile
The FDA received a total of 592,059 adverse event reports across all supplement categories, though specific report counts for this product are not available [FDA data]. For calcium specifically, high levels in the blood and urine can cause poor muscle tone, poor kidney function, low phosphate levels, constipation, nausea, weight loss, extreme tiredness, frequent need to urinate, abnormal heart rhythms, and a high risk of death from heart disease [NIH ODS]. Calcium can also reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].
Our recommendation
Data not available for a specific dosage recommendation for this product. Start by reviewing your total calcium intake from food and other supplements. If you take thyroid medication or antibiotics, separate your calcium dose by at least two hours [NIH ODS]. Check with your healthcare provider before starting this supplement, especially if you have kidney concerns or a history of heart disease [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | NOW |
|---|---|
| Serving Size | |
| Contents | 90.0 Softgel(s) |
| Market Status | Off Market |
How to Read This Label
Supplement labels contain several key sections regulated by the FDA:
- Serving Size — The recommended amount per dose. Always check this — some products require multiple capsules per serving.
- Amount Per Serving — Shows the quantity of each nutrient in the product, typically in IU (International Units), mg (milligrams), or mcg (micrograms).
- % Daily Value (%DV) — Indicates how much a nutrient in a serving contributes to a daily diet. 5% DV or less is low; 20% DV or more is high.
- Other Ingredients — Lists inactive ingredients like fillers, binders, and capsule materials (e.g., gelatin, cellulose, magnesium stearate).
- Suggested Use — The manufacturer's recommended directions for taking the supplement, including timing and dosage.
Source: FDA Dietary Supplement Labeling Guide